238142

Appears in sequences

• a(n) = 8*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 8.at n=6A086903
• a(n) = 2 * T(n,(n+2)/2) where T(n,x) is a Chebyshev polynomial of the first kind.at n=6A343261